Cooling attachment for dental grinding tools



Feb. l1, 1930.

M. G. PARKS ET AL COOLING ATTAcHux-:NT For: DENTAL erasmus 'rooLs Filed Oct. 20. 1927.

nuunnuunu [n neurons I fzcard 4o well'adapted for the Patented Feb. 11, 1930 UNITED STATES PATENT OFFICE MERRITT G. PARKS AND REN G. RICHARD, or GARY, INDIANA,

COOLING ATTACHMENT FOR lDENTAL GRINDING TOOLS Application filed October 20, 1927.` Serial No. 227,574.

This invention relates to attachments for dental grinding tools used for the grinding of teeth and has for an object to provide an attachment carried by the tool adapted ment of this character, which may be also utilized to apply an antiseptic or anaesthetic to the tooth during the grinding operation, which in addition to having a tendency to `keep the tooth cool will also serve for apply ing the anaesthetic to the tooth in a manner to cause the penetration thereof after the enamel is removed and ahead of the grindy ing stone into the dentin of the tooth, thereby enabling the grinding of the tooth without pain to the patient.

`A still further object of the invention is to provide an attachment of this character comprising an absorbent material holder pivotally mounted on the instrument` and adapted to be moved into or out of engagement with the grinding tool when desired for the purpose of cooling the same and which is adapted to permit the removal and replacement of the absorbent when desired.

Another object is to provide an attachment of this character ot simple and practical construction, which may be easily and quickly installedin operative-position upon the dental instruments without necessitating any changes or alterations in the construction thereof, which requires no further attention from the operator after the same has once been placed in operative position, which is inexpensive to manufacture and otherwise purpose for which the same is intended. f

Other objects and advantages reside in the special construction and combination of the various elements comprising the invention,

reference being had to the accompanying drawings forming a part hereof, wherein:

Figure lis a view in elevation of a grinding tool chuck showing the attachment in operative position with respect thereto,

Figure 2 is a top plan view, and

`the absorbent material in Figure 3 is a transverse sectional view taken substantially along a line 3-3 of Fig- Referring to` the drawing in detail, we have shown our invention adapted for use upon a dental grinding tool chuck indicated at 5 adapted to rotatably carry the grinding tool 6' in the` end thereof and which is connected for operation through a flexible cable shown at 7 to a suitable source of power.

In the end of thechuck we arrange a clip 8 adapted to be securely attached thereto and from which extends a forwardly projecting arm 9 having a. pivot pin lO arranged at its outerend upon which is mounted a pair of movable arms 11 extending longitudinally with respect to the chuck and having their outer ends formed into jaws 12coacting with each other `for gripping a quantity of absorbent material indicated at 13, such as a sponge or the like.

The jaw ends of the arms ll are adapted ,to swing outwardly with respect to each other into and out of gripping relation with the absorbent material and are arranged to be retained in closed position by a ring 14 slid- Aablv mounted on the arm and arranged when moved toward the outer end thereof to prevent the spreading movement of the jaws. As clearly illustrated in Figures 1 and 2 of the drawings the arms 1l are of sutlicient length when in extended position to support contacting position with respect tothe tools during the operation ofthe same. l y y It will be apparent from the foregoing explanation that the absorbent material may retain a suitable' cooling liquid which, by reason of its contact with the grinding tool will maintain thetool in` a cool condition as well as enable the tool to pick up a portion of the liquid during the rotation thereof and apply the same to the tooth under treatment for also cooling the tooth. Furthermore in the treatment of a very sensitive tooth, the attachment instead of being saturated with water may be supplied with a solution of novocaine or other V`anaesthetic which, while at the same time in keeping the tooth cool will enable the `anaesthetic to penetrate the tooth after the enamel is removed and thus reach the dentin of the tooth so as to relieve the patient from any pain during the grinding operation.

Furthermore the application of the moisture to the grinding tool and the tooth will prevent the scattering of dust or small particles of the tooth over the-mouth and face of the patient which commonly occurs in the present method of grinding. The clip 8 is frictionally retained upon the chuck and by reason thereof the absorbent material 13 may be readily maintained in a vertical position above the tool during the grinding of the lower teeth of the patient and while grinding the upper teeth, suitable pressure may be maintained between the absorbent material and the grinding tool by the operator pressing his thumb upon the arms. The attaching of the device by means of the clip 8 enables thesameto be readily removed for the purposef ofy cleaning when desired.

It is obvious thatV the invention is susL cept-.ible of various changes and modiications, without departing from the spirit or scope of the invention or sacrificing any of its advantages, and we accordingly claim all suchl forms of thev device to which we are entitled. v

Having thus described our invention, what we claim as new is:

A coolin attachment for handv grinding tools comprising a spring clip having its ends formed into a pair of `arcuate sections disposed in partial encircling relation about the opposite side of the tool handle and having its intermediate section formed with a return bend providing a pair of spaced parallel sections from which the respective arcuate sections extend and an absorbent material supporting arm having one end inserted between said parallel sections and of a width substantially less than the width of the sectionsand ysecured to saidv sections in a position remote from the arcuatev sections whereby to provide for the' outward ielding movement of the greater portion o the parallel"l sections upon the spreading apart of said arcuate sections.

In testimony whereof we ailix our' signatures.

MERRITT G. PARKS. REN G. RICHARD. 

